C# Language
- Getting started with C# Language
- Learn Tutorial
- How to Start Learning C# While Still in College
- Awesome Book
- Awesome Community
- Awesome Course
- Awesome Tutorial
- Awesome YouTube
- .NET Compiler Platform (Roslyn)
- Access Modifiers
- Access network shared folder with username and password
- Accessing Databases
- Action Filters
- Aliases of built-in types
- An overview of c# collections
- Anonymous types
- Arrays
- ASP.NET Identity
- AssemblyInfo.cs Examples
- Async/await, Backgroundworker, Task and Thread Examples
- Async-Await
- Asynchronous Socket
- Attributes
- BackgroundWorker
- BigInteger
- Binary Serialization
-
BindingList
- Built-in Types
- C# 3.0 Features
- C# 4.0 Features
- C# 5.0 Features
- C# 6.0 Features
- C# 7.0 Features
- C# Authentication handler
- C# Script
- Caching
- Casting
- Checked and Unchecked
- CLSCompliantAttribute
- Code Contracts
- Code Contracts and Assertions
- Collection Initializers
- Comments and regions
- Common String Operations
- Conditional Statements
- Constructors and Finalizers
- Creating a Console Application using a Plain-Text Editor and the C# Compiler (csc.exe)
- Creating Own MessageBox in Windows Form Application
- Creational Design Patterns
- Cryptography (System.Security.Cryptography)
- Data Annotation
- DateTime Methods
- Delegates
- Dependency Injection
- Diagnostics
- Dynamic type
- Enum
- Equality Operator
- Equals and GetHashCode
- Events
- Exception Handling
- Expression Trees
- Extension Methods
- File and Stream I/O
- FileSystemWatcher
- Func delegates
- Function with multiple return values
- Functional Programming
- Garbage Collector in .Net
- Generating Random Numbers in C#
- Generic Lambda Query Builder
- Generics
- Getting Started: Json with C#
- Guid
- Handling FormatException when converting string to other types
- Hash Functions
- How to use C# Structs to create a Union type (Similar to C Unions)
- ICloneable
- IComparable
- IDisposable interface
- IEnumerable
- ILGenerator
- Immutability
- Implementing Decorator Design Pattern
- Implementing Flyweight Design Pattern
- Import Google Contacts
- Including Font Resources
- Indexer
- Inheritance
- Initializing Properties
- INotifyPropertyChanged interface
- Interfaces
- Interoperability
- IQueryable interface
- Iterators
- Keywords
- abstract
- as
- async, await
- base
- bool
- break
- char
- checked, unchecked
- const
- continue
- default
- delegate
- do
- dynamic
- enum
- event
- extern
- fixed
- float, double, decimal
- for
- foreach
- goto
- if, if...else, if... else if
- implicit
- in
- int
- interface
- internal
- is
- lock
- long
- namespace
- null
- operator
- params
- partial
- readonly
- ref, out
- return
- sbyte
- sealed
- sizeof
- stackalloc
- static
- string
- struct
- switch
- this
- true, false
- try, catch, finally, throw
- typeof
- uint
- ulong
- unchecked
- unsafe
- ushort
- using
- var
- virtual, override, new
- void
- volatile
- when
- where
- while
- Lambda expressions
- Lambda Expressions
- LINQ Queries
- Linq to Objects
- LINQ to XML
- Literals
- Lock Statement
- Looping
- Making a variable thread safe
- Methods
- Microsoft.Exchange.WebServices
- Named and Optional Arguments
- Named Arguments
- nameof Operator
- Naming Conventions
- Networking
- Nullable types
- Null-Coalescing Operator
- Null-conditional Operators
- NullReferenceException
- O(n) Algorithm for circular rotation of an array
- Object initializers
- Object Oriented Programming In C#
-
ObservableCollection
- Operators
- Overflow
- Overload Resolution
- Parallel LINQ (PLINQ)
- Partial class and methods
- Performing HTTP requests
- Pointers
- Pointers & Unsafe Code
- Polymorphism
- Preprocessor directives
- Properties
- Reactive Extensions (Rx)
- Read & Understand Stacktraces
- Reading and writing .zip files
- Recursion
- Reflection
- Regex Parsing
- Runtime Compile
- Singleton Implementation
- Static Classes
- Stopwatches
- Stream
- String Concatenate
- String Escape Sequences
- String Interpolation
- String Manipulation
- String.Format
- StringBuilder
- Structs
- Structural Design Patterns
- Synchronization Context in Async-Await
- System.DirectoryServices.Protocols.LdapConnection
- System.Management.Automation
- T4 Code Generation
- Task Parallel Library
- Task Parallel Library (TPL) Dataflow Constructs
- Threading
- Timers
- Tuples
- Type Conversion
- Unsafe Code in .NET
- Using Directive
- Using json.net
- Using SQLite in C#
- Using Statement
- Value type vs Reference type
- Verbatim Strings
- Windows Communication Foundation
- XDocument and the System.Xml.Linq namespace
- XML Documentation Comments
- XmlDocument and the System.Xml namespace
- Yield Keyword
C# Language Keywords goto
Example
goto can be used to jump to a specific line inside the code, specified by a label.
goto as a:
Label:
void InfiniteHello()
{
sayHello:
Console.WriteLine("Hello!");
goto sayHello;
}
Case statement:
enum Permissions { Read, Write };
switch (GetRequestedPermission())
{
case Permissions.Read:
GrantReadAccess();
break;
case Permissions.Write:
GrantWriteAccess();
goto case Permissions.Read; //People with write access also get read
}
This is particularly useful in executing multiple behaviors in a switch statement, as C# does not support fall-through case blocks.
Exception Retry
var exCount = 0;
retry:
try
{
//Do work
}
catch (IOException)
{
exCount++;
if (exCount < 3)
{
Thread.Sleep(100);
goto retry;
}
throw;
}
Similar to many languages, use of goto keyword is discouraged except the cases below.
Valid usages of goto which apply to C#:
-
Fall-through case in switch statement.
-
Multi-level break. LINQ can often be used instead, but it usually has worse performance.
-
Resource deallocation when working with unwrapped low-level objects. In C#, low-level objects should usually be wrapped in separate classes.
-
Finite state machines, for example, parsers; used internally by compiler generated async/await state machines.
